Perhaps you should try some spelling variations:
teoria semantica » teoria quantica, theories semantics, media semantic
storia romantica » storia romanza, storia politica, storia gotica
contributi alla » contributi dalla, contributo alla, contribute all
storia antica » storia gotica, historia antiga, storia critica
instituto de » institut der, institution der
istituti di » instituti di, istituto di, istituti pii

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %contributi alla%((instituto de) OR (istituti di)) ((storia antica) OR (((storia romantica) OR (teoria semantica))))%22.
• Adding a wildcard symbol may retrieve word variants: %contributi alla%((instituto de) or (istituti di)) ((storia antica) or (((storia romantica) or (teoria semantica))))%22*.